Tank



FIG. 1 is a perspective view of a first embodiment of a tank showing our new design;

FIG. 2 is a right end view thereof;

FIG. 3 is a left end view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top plan view thereof;

FIG. 7 is a bottom view thereof;

FIG. 8 is a perspective view of a second embodiment of a tank showing our new design;

FIG. 9 is a right end view thereof;

FIG. 10 is a left end view thereof;

FIG. 11 is a front view thereof;

FIG. 12 is a rear view thereof;

FIG. 13 is a top plan view thereof; and,

FIG. 14 is a bottom view thereof.

The first embodiment depicted is shaded to designate that it is opaque. In the second embodiment of the design, the body of the tank is translucent.

The broken lines depict environmental structure and the elements shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a tank, as shown and described. 